Disc Rotor Upgrade

Sikora

I want to upgrade the front disc on my bike as i feel as if my brakes are powerful enough with a 160mm rotor (Brakes are Juicy Three's)

I only really ride at trail centres, but i'm quite a burly lad (16.5 st to be exact)
Now, would i benefit more from a 203mm rotor? Or will a 185mm be sufficiant?
Are there any side affects from running such a large rotor up front?

I don't want to spend £30 or whatever on a 185mm rotor to find its not much different to the 160mm, and at the sime time i don't want to fit a 203mm if its going to make me lock the brake too easily

Just searching the Rockshox website to see if my Reba SL's can actually use a 203mm rotor........

S_J_P

RS Reba SL's are okay for 203mm rotors, but I'd suggest that a 185mm rotor will be sufficient. I went the 8" route, and it's a bit big and burly and over the top for what's in effect an XC bike.

Are you getting a rotor-kit complete with rotor and adapter, or are you going the DIY route sourcing the rotor and a +20mm adapter (for 185mm) yourself?

Sikora

Was just going to buy a new rotor and adaptor from CRC. Secondhand ones don't seem to come up much cheaper on eBay.

i take it this is the adaptor i need for a 185mm rotor on a Reba fork?:
http://www.chainreactioncycles.com/Models.aspx?ModelID=13721

Bleedproof

Yeah..thats the one....

So you decided against the Carbons? I went for the Ultimate 185mm in the end and have yet to fit them but they look great

Stu

shin0r

Bigger the better in my opinion - go for the 203s

ride_whenever

Control is good, go for 185mm

ride_whenever

Control is good, go for 185mm

xtremedash

I have Juicy 3's with a 203mm rotor on the front of my Pitch, I'm not especially big (<12st), but do tend to ride very hard then grab a lot of brake at the last minute.

I have found on a couple of occasions that the front will lock if I'm not careful. There's also not masses of modulation on the 3's, so you have to have a pretty good feel for the brakes so as not to through yourself off.

S_J_P

I'm heavy, and I still think 8" is too big for XC. It also puts a hell of extra strain on the mounts.

185mm will be plenty big enough, it gives a 15% increase in diameter and thus braking force, and aids heat dissipation, and isn't OTT.

Sikora

Thanks for the advice guys. 185mm rotor is on its way